Brush light flashes in Bosch dishwasher
Modern dishwashers have quite a lot of different indicators, which owners pay attention to infrequently, but in vain. The indicator can promptly indicate a particular problem, especially if it does not just light up, but blinks. Let's say the brush on a Bosch dishwasher is blinking. What does this mean? Maybe it’s a breakdown, a small glitch, or the behavior of the “home assistant” that doesn’t mean anything at all? Now we will try to figure this out.
Lights up or blinks: what's the difference?
A lit indicator, indicated by a brush pattern, usually does not cause concern to anyone, especially since the Bosch dishwasher most often works properly. Under normal conditions, this indicator notifies the user that the washing process is in progress, and as soon as the dishwashing is completed, it goes out. On some models of Bosch dishwashers, this indicator lights up at the beginning of the wash, and then goes out after some time. This is normal “behavior” of the machine, you don’t have to worry.
The indicator with the image of a brush most often lights up after the start of the washing program and goes out after the washing phase has ended and the drying phase has begun.
This indicator may behave completely differently. It may suddenly begin to blink, and the operation of the machine most often stops and freezes until it is restarted. What is the reason for the blinking of the indicator with the image of a brush? In some cases, a system glitch is to blame. It cannot be fixed by simply unplugging the dishwasher. You need to do the following:
- as soon as the indicator flashes, you need to press the program start button and hold it for 3 seconds;
- turn off the dishwasher (to be sure, you can unplug the power cord, completely de-energizing it);
- wait 15 seconds, and then turn on the dishwasher again;
- set the desired washing program and launch it.
If the indicator starts flashing again, do not bother the dishwasher. It seems that this is not a system failure, but something more serious happened.
Troubleshooting
If the indicator on a Bosch dishwasher is on, and a brush is drawn to the right of it, this can be said to be a normal situation. But if this same indicator blinks, there is no time for jokes, we can talk about a serious breakdown. First you need to make sure that this is not a system failure by performing a series of simple steps described above. Next you need to check the Aquastop sensor, which is located in the tray under the body of the machine. There is such a sensor in Bosch machines with full and partial protection against leaks, and we need to make sure that it does not stop the operation of the machine.
- Let's try to tilt the machine, first laying a rag next to it.
- If there is water in the pan, it will spill out.
- If you managed to drain the water from the pan, you can restart the machine and make sure that the indicator does not blink for some time.
Then 2 situations are possible. In the first case, water will fill the pan again and Aquastop will work again. In this case, you need to look for a leak in the housing. In the second case, the breakdown may not recur if water gets into the pan by accident. One way or another, it will be possible to establish that the cause of the problem was a leak.
If there is no water in the pan, then the Aquastop sensor may simply be “stuck.” You will have to turn off the dishwasher, remove the tray and check the position of the float.Unfortunately, this problem occurs quite often, especially if the dishwasher has been moved or moved.
Notice at what point the indicator starts flashing. If the blinking starts when the machine tries to draw water, the inlet valve may be faulty or the water supply tap to the dishwasher is simply turned off. The latter may seem banal, however, it occurs all the time. Do the following:
- check the water supply to the machine;
- listen again to how the machine draws water (to do this you will have to restart the dishwasher again);
- if there is a slight click, then a buzzing sound, but water still does not flow into the machine, therefore, the inlet valve or its relay is faulty.
In more rare cases, a malfunction occurs in the control module, which cannot issue a command to open/close the intake valve.
The indicator may start flashing after water has been filled into the tank, approximately 10 minutes after the start of washing. In this case, the “symptoms” are the same: first, the “Brush” indicator blinks, then the dishwasher stops completely. With this “behavior” of the machine, you should pay attention to the garbage filter and sprinklers.
It is necessary to remove and wash the filter, disconnect and check the sprinklers, in the holes of which dirt may accumulate. Moreover, the dirt can be packed so tightly that water cannot even seep through the blockages, much less pass under pressure. This often happens among those who like to do homemade dish detergent mustard based. The mustard mass hardens and becomes dense and clogs all the smallest holes in the machine, paralyzing its operation.
The last thing to check is the control board, but we would strongly advise against doing this yourself. It is better to invite a specialist who will quickly and competently carry out diagnostics. We also do not recommend changing the control module yourself without making sure that it is broken. There is no need to make the problem worse.
Debugg
The troubleshooting algorithm will depend on the nature of the breakdown you discovered, this is obvious. For our part, we advise you not to deal with breakdowns that require serious and qualified repairs. In this case, “do-it-yourself” can cause a lot of harm, so if you need to repair the control module or inlet valve, invite a specialist. In other cases, you can do it on your own. Finding a leak and eliminating a stuck Aquastop sensor requires disassembling the dishwasher.
- To access the dishwasher tray, you need to unplug it, pull it out and tilt it to drain the water.
- We place the washing machine conveniently so that you can walk around it freely.
- We unscrew the front panel, which is located directly under the door, and remove the plastic protection of the door hinges. You need to remove the hooks of the closers from these same loops.
- From the inside, along the edges of the door, unscrew the screws that hold the front panel. After this, the front panel can be removed by sliding it down slightly.
- Underneath the closed door you will see a thin metal plate called the inner plate. It needs to be removed.
- Next, unscrew the screws holding the base of the dishwasher.
The side screws are located at the corners of the main body at the top of the tray.
- We remove the lower basket and disconnect the spray arm, which is located at the bottom of the washing chamber.
- Unscrew the garbage filter and remove the mesh.Under the mesh we will see mounting screws that also hold the base of the dishwasher, remove them.
- We lay a large rag behind the body, and then carefully place the dishwasher “on its back.”
- Let's disconnect the inlet hose, the chip with wires and the pump, which is located on the side of the circulation block, from the pan.
- Carefully pull the tray towards you and disconnect it from the body.
By disassembling it yourself, you can easily determine the location of the leak. In addition, you can easily eliminate the sticking of the Aquastop sensor by adjusting the float or simply completely de-energizing this element. We do not recommend doing the latter, since this will leave the dishwasher unprotected. Once the breakdown is fixed, you can safely reassemble the machine in the reverse order.
Some of our readers ask the question: if the brush icon blinks, what does it mean? It’s impossible to answer it in a nutshell, so we decided to give a detailed explanation, which required the creation of an entire publication. We hope we helped resolve the problem. Good luck!
Interesting:
3 reader comments
I'll describe the problem. When you select a washing program and then press the Start button, the “brush” icon starts blinking, in principle, then it washes everything without problems. They write on the Internet that in this case you need to contact a specialist, because... The instructions for the machine do not describe such a case.We tried turning the machine on and off; if you reset the program, the icon stops blinking, but when you then select the program again and start the machine, the “brush” icon blinks. Please tell me what this warning could be and whether this is a serious warning?
It doesn't turn on for me at all. Lucky you.
We have the same situation, when you turn on the brush blinks. I press start, it starts washing, then the machine washes. When finished, there is no beep, you open it and the drying indicator starts flashing. The dishes were wet and cold, washed in cold water.